What are Transition Signature Lenses?

Transition Signature lenses are a type of eyeglass lenses that automatically adjust their tint in response to changes in lighting conditions. These lenses darken when exposed to ultraviolet (UV) light, such as sunlight, and become clear again when indoors or away from UV light.

Transition lenses are a complicated technology that incorporates photochromic molecules within the lens material. These molecules react to UV light by undergoing a chemical process that causes them to darken. The lenses gradually darken as they are exposed to more UV light and can reach almost as dark as sunglass lenses.

There are several advantages to using transition lenses:

1. Convenience: Transition lenses eliminate the need to switch between regular eyeglasses and sunglasses when moving between indoor and outdoor environments. They automatically adjust to the lighting conditions, providing suitable vision throughout the day.
2. UV protection: Transition lenses offer 100% protection against harmful UV rays. They help reduce the risk of eye damage caused by prolonged exposure to UV light, including cataracts and macular degeneration.
3. Adaptability: These lenses adjust quickly to changing light conditions, allowing for comfortable vision in various environments. They can darken within seconds when exposed to bright sunlight and lighten indoors or in low-light settings.
4. Lens options: Transition lenses are available in various lens materials and designs, including single-vision, bifocal, and progressive lenses. They can be incorporated into prescription eyeglasses or used as standalone sunglasses.

It's important to note that transition lenses will not darken inside a vehicle since most car windshields block a significant amount of UV light. If you want Transition Lenses that Darken behind a car's windshield, we suggest you use Transition Xtractive lenses. Additionally, transition lenses may take a short time to lighten when transitioning outdoors to indoors.